<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{currentCity}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCity(item.name)">
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			<div class="area" v-for="(item, key) of cities" :key="key" :ref="key">
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list">
					<div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id" @click="handleCity(innerItem.name)">{{innerItem.name}}</div>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
import BScroll from 'better-scroll'
import { mapState, mapMutations } from 'vuex'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  computed: {
    ...mapState({
      currentCity: 'city'
    })
  },
  methods: {
    handleCity (city) {
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.wrapper, { mouseWheel: true, click: true, tap: true })
  },
  watch: {
    letter () {
      if (this.letter) {
        console.log(this.letter)
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~@/assets/styles/varibles.styl'

.border-topbottom {
	&:before {
		border-color: #ccc;
	}
	&:after {
		border-color: #ccc;
	}
}
.border-bottom {
	&:before {
		border-color: #ccc;
	}
}
.list {
	overflow: hidden;
	position: absolute;
	top: 1.58rem;
	left: 0;
	right: 0;
	bottom: 0;
	.title {
		line-height: 0.54rem;
		background: #eeeeee;
		padding-left: 0.2rem;
		color: #666666;
	}
	.button-list {
		padding: 0.1rem 0.6rem 0.1rem 0.1rem;
		overflow: hidden;
		.button-wrapper {
			width: 33.33%;
			float: left;
			.button {
				text-align: center;
				margin: 0.1rem;
				padding: 0.1rem 0;
				border-radius: 0.06rem;
				border: 0.02rem solid #ccc;
			}
		}
	}
	.item-list {
		.item {
			line-height: 0.76rem;
			padding-left: 0.2rem;
		}
	}
}
</style>
